The listing notes the game features "additional content," including using the GamePad with a new augmentation called the "Neural Hub." While Square Enix is listed as the publisher, the listing doesn't mention which developer is behind the port, but it may well be Straight Right. The Australian developer ported Mass Effect 3 to the system, and has been reported as bringing a major Square Enix game the Wii U's way too.
Update 1: When approached, a Square Enix representative told Joystiq, "We don't comment on rumor or speculation."
Update 2: The Amazon page has now been taken down, but you can see a screencap of the listing below the break, along with the featured box art.